Automatic selective valve



JNVENTOR.

ATTORNEY.`

O.' L HANKINS AUTOMTIC SELEC'IIVEl VALVE Filed April 24, 1925 l Mn. WN.

' nearby connection, withgthe feed, pump. Inhouses ,Y I

. 1n ordertomake operative engagement with Patented Sept. 1, 12925.

' OSCAR L. HANIKINS, OF TOPEKA, KANSAS.

AUTOMATIC sELEcTIvE VALVE.

Application me@ Aprii 24, 1925'. serial 110525,661'.

ToV all whom may concern;

Be it known that I, OSCAR L. HANKINS, a

citizen of the United States of America, re-V siding at Topeka, in thecounty of Shawnee and State of Kansas, have invented certain new anduseful .Improvements in Automatic Selective Valves, of which thevfollowing, is Y. a specication, reference being hadhtoA the drawingsforming a part hereof.4 w y,

My Vinvention .relates to 'an automatic valve .device designed for use'in rural or suburban houses (for example) where two sources of twodifferent kinds' of water exist and itis required to vhave either kindof wateren tap at each lavatory, bathtub.

' The objectY ofthe inventionis to lprovide means. for-suchv dualsupply; without thel necessity offpersons. going tothe. basementtoopenor--closea valve or valvesrinorde'r to connect the desired kind ofwater-Ito a Vfaucet. v

vThis object ycould befattained, without 'i such extra manipulation ifthelsupplyv pipes fwere led to two independent-pressure reserf voirs, iftwo force-pumps J were also proyvided for maintaininghpressure intherespectiveA reservoirs. My invention `provides the desirejdservice finconnection with a single pump vand a single v pressure-tank,

whereby a substantial saving of: money is effected. f l

1 use the termlpressure-tank above -inga generic sense, for 'the reasonthat it will: not

be in all cases necessary toemployatankin where both kinds of waterarelikely to be A preferred embodiment the invention` used every day,Orsay Yonce or twlicea week, the air chamber of the .pump Vwill-performthe function ofthe'air cushion inatank,

anda lmore immediate supply fofV the prop-.s

er'kind of water through a than'with a tank.,

faucet will `occur Fig. 2 is a vertical sectionalview on line .of Fig.1, omitting. two of the ,Qheck-4 Th rif-rr valves;

sink, or

. Fig. 3 is a detail face'view of 'one yof the valve-actuating pistons.

Fig. 4 is a diagramsh'owing a power p ump, a ypressure-tank and theirconnections inpart.l l

' -On Fig. 1, the vletters Bland C denote respectively, pipes leadingfrom two separate sources of differentkinds of water, as, for example, avwell anda cistern. Saidwpipes are respectively connected by nipples 5to a pair of check-valves- 6'? These check- -valves are connectedyrespectively, by nipples 77', with a pair of clifeck-valvelbodies 8.,*8,which are mounted on opposite. ends 'of a rectangular cast metal box, 9,by means-'of Said box has a removable iside: or top, 9'..

isisl opposite the direction of flow in pipes'BjG,

asv indicated by arrowsy adjacent said valves which Iindicate ythedirection offopening.v

Thev arrangement of'valves 6 6l andS 8 is the same at both ends "of the,chambered `b`ody9.

l The check-valves3inv valvelbodies 8 are las shownof the hinged valvetype, as 'shown V*inV Fig. 2, ywhereini12f12y are' thevalves proper and13 1.3 their hinges.`

The operation of .these yvalves as to their opening, is controlled bypush-rod 414,-1longitudinally slidableincapfbearings 15 15.

Rod 14 as-shown has an integral lateral v arm Alvhaving a pin-and-slotconnection .17

18with fa rock-arm 19, pivote'd in the box atV 2()v and extending'horizontally lin vclose proximity to. rod-arm` `16 land* beyondsanie,

ried byirock-arml 19, takinginto thefslot.

, Desirably, theportion offarm 19 bearing the pin"2 4`i s bifurcated tostraddle the crosshead.;

The piston rod21 extendssymmetrically in opposite directions from itscentral crosshead, and will lbe further described as to itsright-handend, itbeing understood that the construction toy be describedis duplicated at the opposite end of the device.

bex 9 isj bereden@ .threfledfilfeunion 28 into the cylinder 29"'aiidpastthe l"Ditothe'taucet. '.The opening of valve 13 Lil jupon' oradjacent to the pump, and serves for 'allvthefaucets' in the house,asbranclr pipe, is screwed into the fouter eiidfot =thcunion, and isconnected to a pipe E by a coupling 30.

VThe right half of rod 2lrextends through centre thereof even when inneutral position; in'otlier Words, the piston; or disc 32, fixed on theend of rod 21, `will stand about midway ofits cylinder when at neutralposition. As most clearly shown by Fig. 3l, the piston iseither notchedin its periphery, as at 33, or is piovided With holes for portsv ifits'periphery be circular. In practice, this piston-receives theimpactof suddenly admitted liquid under pressure, throughpipe H, yet ivil'l`permit a su'tlicient iioiv of liquid outwardly tol pipe E,

The'above description applies equally to the "piston 30', shown'indotted lines atthe left of' Figiyl, and tothe pipes D,VG.

Thevalve push-rod `141 is made oisuch length that when Veitherend of itis in con'- 'tact with; aV closed'valve, 12 or. 12", its oppositejendholds the opposite valve fully open.

Pipes D jandE- lead to a pairof faucets (not shown) otthe-usualv kindand which maybelong to any lavatory, sink or bath tub in 'the' house'.

lfilfdenotes 'an electricallydrivenA pump ci any knowir make, 'providedis usualivith an 'automatic starting .and stopping device sure-tanltWhich is' edifr'om thepump at 42.',:Tlie pump' another pressure-outlet,131,'.vvliich in practice is connected to pipeA G,

Figl. The' tank outlet,41l,is connected to the'soit-'Walt'er end rofthedevice-'that is, to pipe H. The pump intake, 35," is"con'nected inpractice to Vpipe J.

The' device shown iii-[Fig: 1 is installed pipes are led ronipipes'Dfand'E'to each pair of `tapsiii'tlie building.

"Supp-osing'that each pair of 'faucets is vto deliver cold hard andcold-soft2 water, the operation'willlbe as follows 'for drawing softWater: I open'theitaucet connected'ivith .pipe E; this allows Water torush into cylv`inger29 'throi'igh pipeV H; the pressure on "fp'istonSO'fforcesthe piston', with rod 21, to fthe right until collar B7strikes the wall 'of lthe'chamber; this movement* rocks-'the rockarin'19in the 'sa-me direction. Thisistraiis mitted .to arm 16`and push-rodl4l,`ivhichV impinges' v on'checlnvalve 412 and ope-ns it.

Water is thus admitted from supply pipe C to the suction pipe J or thepump, and

the faucet Which is open receives a constant flow of Water through pipesC, II and piston SOinthis Way. Y

When drinking (spring) `ivateris desired, the left-hand faucet isopened. Piston 30 moves =outivard,shi`iting the push-rod to the left,thus opening valve 12. Hard Water noiv iiloivsfrom pipe B throughchamber I, pipe J, pump, pipe G, piston 30 and pipe a 'Waythat a ythirdfaucet lforl hot Water `may be added to each lavatory, and Vhotr'xvaterfrom the cistern side of the plant'may -be had by opening anyliotWaterfaucet,Without any alterationwhatever 'of `the automatic valvedevice from 1 the lconstruction here shown.

I-Iaving thus described my invention', vvhat I'claim as'neiv-and'desirel to secure by Letters'v Patentis v 1f-In Va"'uid pressure'act-iiatedfimeaiis, said means comprising-a pair of Vcylinders mountedlon thefchamber', each cylinderliavcontrolled by pressurei M denotes apresing 'anfo'utlet to a faucet andan inletV Jr'roin 'a Vsource "ofpressure', pistons ivitlr ports,i1i

therespective cylinders, av `reciprocal rod connecting the` 'pistonsand'fpassing through the chamber, and a mechanical movement connectedwith saidiod.

2. A lbox; opposed tubes connected With so'arrangedA as toopeneitherypivoted valve While' permitti'ng'the othersto' close.r

In combination with claim 2, a-ieci-psides of the box, and means foractuating the push-rod `from/the piston-rod, each of the cylinders beingprovided'iwvith an intakeatvones'ide fotthe pist-on andan outlet-'at theother side of the piston.

4:. Iny combination, a"fboX containing a Water-chamber, and( having abore in one Wall, a stuiiingb'ox Athreaded in they bore, a three-Wayunion'ithreaded to the .stuffingboX with its main axis alignedWitliftliat of the stutiingbox, a tube threaded to said union opposite-ends of the boinapivoted yalvelin eac,litubef,=an ;l a reciproca'blepush-rod i'ocalirod passing through the'box, opposedported' pistons 'onsaid'rodycylinders' containing the piston's'and' 'mounted on oppositeyon the main axis, a ported piston in the tube, the other rod, ayconnection between the end y and a piston rod secured to the piston andof the rook-arm and one rod, and a similar 10 passing through thestuiingbox into the connection between a ydierent point on the waterchamber aforesaid. Y rock-arm and the other rod. i

5. A box, a rook-arm pivoted therein, al In testimony whereof, I havethis day pair of reciprooable rods passing through affixed vmysignature. the box in parallel relation, suitable bear- Y ings for oneof the rods, packedbearings for OSCAR L. HANKINS.

